We mustn't be nervous when we are in danger.We should _____ cool.A.take B.stay C.live D.make

we mustn't do that again The meeting is very important .so we __ be late. 为什么用mustn't .不用can‘t. You mustn't be silly中文是什么意思 can‘t be 和mustn’t be的用法 we mustnˊt be late的反义疑问句?must not有一定不的意思吗? The meeting is very important,so we ____ be late.A.needn't B.can't C.may not D.mustn't那为什么不选B勒.can't和mustn't旳区别是什么阿. what's the time?It's 7:50.Hurry up.We ( ) be late.a.needn't b.aren't c.mustn;t d.don't应选哪一个,为什么? What we need is___the animals.We mustn't wast time. We mustn't be nervous when we are in danger.We should _____ cool.A.take B.stay C.live D.make We mustn’t be nervous when we are in danger.We should cool.3QA.take B.stay C.live D.make mayn't be ,can't be,mustn't be,shouldn't be的区别 情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来：1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn 情态动词must与need可能互换吗?新概念第二册41课,我觉得need与must可以互换,换了意思一样,我列出来：1,you needn't (或mustn't) be so rude about it2,We mustn't (或needn't) buy things we don't need.3,You needn't (或mustn 1． That shirt____Tom’s.We cam see his name on itA.mustn’t be B.can’t be C.must be D,must2． The books in the library _______ without permission.We have to read than in it or borrow them from from it A.can’t take out B.mustn’t be taken C. The engineer must be at home,for the light is on,___?A.mustn't heB.isn't hewhy we choose B? must we clean the room right now?No,you ______.You ______clean it after lunchA.mustn't;can B.needn't;must c.practise D.be practiced You mustn't go too high,or you()dangerous Awill be B are C would be Dis going toWe have known each other(）Asince we were youngBafter we were young Cwhen we are young D if we are young we什么work hard用must或mustn‘t填